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<h1 class='mb-8'>The Go HTML builder</h1>

<div class='border-t'><p>Like at the beginning we said, That we don&#39;t use interpreted template language (eg go html/template)
to generate html page. We think they are:</p>

<ul>
<li>error prone without static type enforcing</li>
<li>hard to refactor</li>
<li>difficult to abstract out to component</li>
<li>yet another tedious syntax to learn</li>
<li>not flexible to use helper functions</li>
</ul>

<p>We like to use standard Go code. the library <a href="https://github.com/theplant/htmlgo" rel="nofollow">htmlgo</a> is just for that.</p>

<p>Although Go can&#39;t do flexible builder syntax like <a href="https://kotlinlang.org/docs/reference/type-safe-builders.html" rel="nofollow">Kotlin</a> does,
But it can also do quite well.</p>

<p>Consider the following code:</p>

<highlightjs :language='"go"' :code='"import (\n\t\"github.com/qor5/web/v3\"\n\t. \"github.com/theplant/htmlgo\"\n)\n\nfunc result(args ...HTMLComponent) HTMLComponent {\n\tvar converted []HTMLComponent\n\tfor _, arg := range args {\n\t\tconverted = append(converted, Div(arg).Class(\"wrapped\"))\n\t}\n\n\treturn HTML(\n\t\tHead(\n\t\t\tTitle(\"XML encoding with Go\"),\n\t\t),\n\t\tBody(\n\t\t\tH1(\"XML encoding with Go\"),\n\t\t\tP().Text(\"this format can be used as an alternative markup to XML\"),\n\t\t\tA().Href(\"http://golang.org\").Text(\"Go\"),\n\t\t\tP(\n\t\t\t\tText(\"this is some\"),\n\t\t\t\tB(\"mixed\"),\n\t\t\t\tText(\"text. For more see the\"),\n\t\t\t\tA().Href(\"http://golang.org\").Text(\"Go\"),\n\t\t\t\tText(\"project\"),\n\t\t\t),\n\t\t\tP().Text(\"some text\"),\n\n\t\t\tP(converted...),\n\t\t),\n\t)\n}\n\nfunc TypeSafeBuilderExample(ctx *web.EventContext) (pr web.PageResponse, err error) {\n\tpr.Body = result(H5(\"1\"), B(\"2\"), Strong(\"3\"))\n\treturn\n}\n\nvar TypeSafeBuilderSamplePFPB = web.Page(TypeSafeBuilderExample)\n\nvar TypeSafeBuilderSamplePath = URLPathByFunc(TypeSafeBuilderExample)\n"'></highlightjs>
<p>It&#39;s basically assembled what Kotlin can do, Also is legitimate Go code.</p>

<div>
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<a href='/examples/type-safe-builder-example' target='_blank'>Check the demo</a>
 | 
<a href='https://github.com/qor5/admin/tree/main/docs/docsrc/../../../../../go/pkg/mod/github.com/qor5/web/v3@v3.0.12-0.20250225073451-8e876be98c21/examples/type-safe-builder-sample.go#L3-L46' target='_blank'>Source on GitHub</a>
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